omega-minus particle

American

[oh-mee-guh-mahy-nuhs, -mey-, oh-meg-uh-] / oʊˈmi gəˈmaɪ nəs, -ˈmeɪ-, oʊˈmɛg ə- /

noun

Physics.

a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Ω −

First recorded in 1960–65

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023